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IJBER Volume 1, Issue 1 (January, 2013)
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INTERNATIONAL JOURNAL
OF BUSINESS AND ECONOMIC RESEARCH
A Journal of
IMPACT OF KEY INTERNAL DETERMINANTS ON
PROFITABILITY AND SHARE PRICE PERFORMANCE OF A
LARGE PUBLIC SECTOR BANK IN INDIA
Rajveer Rawlin
Research Scholar, Bharathiar University, India
Email: samuelrr@yahoo.com
Cell: (+) 91-9480217380
Dr. Ramaswamy Shanmugam Professor, Department of Management Studies, Bharathiar University, India
Abstract
Banking sector reforms have changed the profile and functioning of the Indian banking
industry in a significant manner. The reforms have led to the increase in resource
productivity, increasing level of deposits and credits, increase in profitability and
decrease in non-performing assets (NPAs). Profitability of banks is impacted by both
internal and external factors. Profitability eventually drives stock price performance.
Accordingly this paper attempts to study the determinants of profitability of a leading
public sector bank in India and the relationship between the bank’s profitability and share
price. The key performance indicators chosen were: deposits, advances, net NPAs, business-per -employee, profit-per-employee, capital adequacy ratio and return on assets. The impact of these indicators on net profit and the share price
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were studied in the period 2002-2011 through a multi-variate regression analysis. A strong correlation was observed between net profit and individual performance indicators such as deposits, advances, net NPAs and business-per-employee. A strong correlation was also observed between the stock price and individual performance indicators namely deposits, advances, net NPAs, business-per-employee and profit-per-employee. The correlation of the performance indicators with both the net income and the share price increased when all the indicators were taken together in a multi-variate regression. This suggests that the chosen indicators have a synergistic effect on profitability and the stock price.
Keywords: Net Profit, Stock Price, Key Performance Indicators, Indian Public Bank, Multiple Regression, Synergy.
1. Introduction
Introduction of banking sector reforms have changed the face of the entire Indian banking
scenario. The national, institutional and international boundaries are becoming less
important. Globalization of operations and development of new technologies are taking
place at a rapid pace. A shift in marketing philosophy of banks is visible from the rising
focus on quality of service offered to customers. However, banks are now facing a
number of challenges such as frequent changes in technology required for modern
banking, stringent prudential norms, increasing competition, worrying level of NPA’s,
rising customer expectations, increasing pressure on profitability, rising operating
expenditure and shrinking levels of spreads. The reforms in banking sector have also
brought margins under pressure. The Reserve Bank of India’s (RBI) efforts to adopt
international banking norms have further forced banks to adopt measures to control and
maintain margins.
The profitability of a bank is predominantly driven by a series of internal and external
factors. The internal determinants of bank profitability include but are not limited to bank size, capital, risk management procedures adopted, expenses, and diversification adopted (Molyneux and Thornton, (1992); Goddard et al., (2004); Bodla
and Verma, (2006)). External determinants of bank profitability include both industry structural determinants such as market concentration, industry size and ownership, and macroeconomic determinants such as inflation, interest rates, money supply and Gross Domestic Product (GDP) (Athanasoglou et al., (2008);
Chirwa, (2003)). In the current study we focus primarily on the impact of internal factors closely
monitored by the RBI on bank profitability and share price performance These factors
include deposits, advances, net NPAs, return on assets, the capital adequacy ratio, business-per-employee and profit-per-employee. The effect of these factors on bank profitability and share price performance was examined over a 10 year period spanning from 2002-2011 through a multi-variate regression analysis.
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Objectives: The following are the specific objectives of this study:
a) To assess the impact of key internal factors namely deposits, advances, net NPAs,
return on assets, the capital adequacy ratio, business-per-employee and profit-per-
employee on profitability.
b) To assess the impact of the above factors on the share price.
c) To study the combined effect of all the above factors on both profitability and the
share price.
2. Literature Review
The banking sector plays a pivotal role in fostering economic development. By
mobilizing savings from the public and channeling them through advances, banking
activities support developmental activities across the nation. Thus, a stable banking
system is mandatory for a nations overall financial health and prosperity. An
understanding of factors instrumental in driving bank profitability can throw light not
only in identifying profitable banking strategies but also will help uncover operational
inefficiencies which can be eliminated.
There are several factors that impact the profitability of banks (Sufian and
Habibullah, (2010); Dietrich and Wanzenried, (2011)). These factors can be broadly
classified as either internal determinants that originate within the firm such as bank size, capital, risk management, expenses management, and diversification (Molyneux
and Thornton, (1992); Goddard et al., (2004); Bodla and Verma, (2006)) or external
determinants that are outside the firm like market concentration, industry size and ownership, inflation, interest rates, money supply and Gross Domestic Product (GDP) (Athanasoglou et al., (2008); Chirwa, (2003)).
Several studies have examined the impact of key internal factors on profitability.
Smirlock & Brown, (1986) studied the impact of demand deposits as a function of total
deposits on profitability. Their findings suggest that demand deposits had a significant
positive relationship with profits. Miller and Noulas, (1997) found that loan loss
provision and net charge offs had a significant negative effect on the profitability of large
banks. These results indicated that net charge offs were further affected by asset and
liability composition. Thus, the asset liability portfolio decisions of commercial banks
can be expected to affect the profitability of these institutions via net charge offs. It was
also observed that higher salaries and benefits per employee were consistently associated
with higher net charge offs to total assets. This suggested that banks with higher salaries
and benefits would require higher net interest margins to maintain profitability.
Ganesan, (2001) examined the profitability of public sector banks in India and
found that interest costs, interest income, other income, deposits per branch, credit to
total assets and proportion of priority sector advances were key determinants of
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profitability of these banks. Holden and El-Bannany, (2004) investigated whether
investment in information technology systems affects bank profitability in UK. The
results showed that, when the other factors used in the literature are included, the number
of automated teller machines installed by a bank has a positive impact on bank
profitability. Bodla and Verma, (2006) made an attempt to identify the key determinants
of profitability of public sector banks in India and their study indicated that the variables
such as non-interest income, operating expenses, provision and contingencies and spread
have significant relationship with net profits.
In a study done on Tunisian banks from 1980-2000, Ben Naceur and Goaied,
(2008) find that banks with relatively high amount of capital and overhead expenses tend
to exhibit higher net-interest margin and profitability levels. They also find that bank size
is negatively related to profitability. Additionally stock market development had a
positive impact on bank profitability. Further private banks were found to be relatively
more profitable than their state-owned counterparts.
Sufian, (2009) examined the determinants of Malaysian domestic and foreign commercial
bank profitability during the period 2000-2004. It was found that Malaysian banks with
higher credit risk and loan concentration exhibit lower profitability levels. On the other
hand, banks that have a higher level of capitalization, higher proportion of income from
non-interest sources, and high operational expenses proved to be relatively more
profitable.
External determinants of bank profitability encompasses the impact of
macroeconomic variables such as concentration, growth and inflation on bank
profitability (Rajan and Zingales (1998); Athanasoglou et al., (2008); Chirwa, (2003).
Chirwa, (2003) investigated the relationship between market structure
and profitability of commercial banks in Malawi using time series data between 1970
and 1994. The analysis shows a long-run relationship between bank performance and
concentration. Sufian, (2009) found that economic growth negatively impacts the
profitability of Malaysian banks. Higher inflation rates however positively impacted the
profitability of these banks. While studying a sample of eighteen European countries
Molyneux and Thornton, (1992) found a significant positive relationship between the
return on equity and the level of interest rates in each country, bank concentration, and
government ownership.
Kumar and Warne, (2009) have found that valuations in the stock market as
measured by the Price/Earnings (P/E) ratio are largely influenced by the size of the firm
and variations in the market price. The impact of both internal and external determinants
of profitability on share price performance is however not clearly understood.
3. Methodology
This study used historical data to study the impact of the independent
variables namely, deposits (D), advances (Adv), net non performing assets (NPA), business-per-employee (BPE), profit-per-employee (PPE), capital adequacy ratio (CAR) and return on assets (ROA), on the dependent variables
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namely, the Net Profit (NP) and / or the Share Price (P) of a large Indian public sector bank. The study was conducted with annual data for the past ten year period i.e.
from the financial year 2002 to 2011. Historical data on all of the above were obtained from the Capitaline financial database. The relationship between the variables was analyzed with the SPSS 18.0 package.
Correlation coefficients were determined to study the relationship between the respective variables. Significant F values from ANOVA were used to assess the statistical significance of the correlations observed at 95% confidence intervals. Relationships that were not statistically significant at 95% confidence intervals were excluded from further analysis and these variables were eliminated. Then a multi-variate regression analysis was used to study the impact of all the variables taken together on both the Net Profit and the Share Price.
4. Results:
Table 1: Relationship between Profitability and Performance Indicators: Results
of Correlation Analysis, Regression Analysis and Anova Dependent
Variable
(Profitability)
Independent
Variable
(Performance
Indicators)
Relationship Correlation
Coefficient
(R)
Regression
Coefficient
(R2)
F
Value
Sig. F
Value
Net Profit Deposits + 0.957 0.916 87.18 0.000
Net Profit Advances + 0.945 0.893 67.02 0.000
Net Profit Return on Assets + 0.220 0.049 0.41 0.541
Net Profit Business-per-
Employee
+ 0.955 0.913 83.70 0.000
Net Profit Net NPA - 0.837 0.700 18.68 0.003
Net Profit Capital Adequacy
Ratio
+ 0.467 0.218 2.23 0.174
Table 1 shows the results of correlation analysis, linear regression analysis and
Anova. Profitability as measured by net profit is considered as the dependent variable
while the independent variables are deposits, advances, net NPA, business-per-employee, capital adequacy ratio and return on assets. Among these variables, deposits, advances and business per employee were found to be highly correlated
with net profit. The values of ‘R’ and ‘R2’ values close to 0.9 and were also statistically
significant at the 95% confidence level. The Net NPA was inversely correlated to net
profits. The capital adequacy ratio and return on assets were not strongly correlated to
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net profit at the 95% confidence level and hence were excluded from subsequent
analysis.
Table 2: Relationship between Profitability and Performance Indicators: Multi-
Variate Regression Analysis and Annova
Depende
nt
Variable
Independe
nt
Variable
Relationsh
ip
Correlati
on
Coefficie
nt R
Regressi
on
Coefficie
nt R2
F
Valu
e
Sig.
F
Valu
e
Deposits
Advances
Net Profit Business -
per -
Employee
+ 0.994 0.988 104.4
8
0.00
0
Net NPA
The impact of the statistically significant variables namely deposits, advances, net NPA, business-per-employee, and profit-per-employee on net profit was further analyzed with multi-variate regression analysis. The correlation and regression coefficients registered values close to 1 and were higher than those observed when the impact of the variables on net profit was assessed individually (Table 1). The relationship was also statistically significant at
the 95% confidence level. The relationship from the above analysis is shown below:
1) (Eqn. 3594.031-NPA)](Net *[0.566 - Employee) / (Business*[8004.059 ](Advances)*[0.054 - ](Deposits)*[0.014 =ProfitNet
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Table 3: Relationship between the Share Price and Performance Indicators:
Results of Correlation Analysis, Regression Analysis and Anova
Depende
nt
Variable
Independe
nt
Variable
Relationsh
ip
Correlati
on
Coefficien
t R
Regressi
on
Coefficie
nt R2
F
Valu
e
Sig.
F
Valu
e
Share
Price
Deposits + 0.920 0.847 44.3
4
0.00
0
Share Price Advances + 0.936 0.876 56.3
4
0.00
0
Share Price Return on
Assets
+ 0.188 0.035 0.29 0.60
2
Share Price Profit-per-
Employee
+ 0.748 0.560 10.1
9
0.01
3
Share Price Business-
per-
Employee
+ 0.930 0.865 51.0
8
0.00
0
Share Price Net NPA - 0.809 0.654 15.1
4
0.00
5
Share Price Capital
Adequacy
Ratio
+ 0.732 0.536 9.24 0.01
6
Table 3 shows the results of all the three tools namely correlation, regression
and Anova by considering the share price as the dependent variable and deposits, advances, net NPA, business-per-employee, profit-per-employee, capital adequacy ratio and return on assets as the independent variables. Among these
variables, deposits, advances, business per employee and profit per employee were highly correlated to the share price and were also statistically significant at the
95% confidence level. Net NPA was inversely correlated to the share price. The capital
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adequacy ratio was correlated positively to the stock price. Return on assets was not
strongly correlated to the share price at the 95% confidence level and hence was
excluded from further analysis.
Table 4: Relationship between Profitability and Performance Indicators: Multi-
Variate Regression Analysis and Annova
Depende
nt
Variable
Independe
nt
Variable
Relationsh
ip
Correlati
on
Coefficien
t R
Regressi
on
Coefficie
nt R2
F
Valu
e
Sig.
F
Valu
e
Deposits
Advances
Net Profit Profit-per-
Employee
+ 0.959 0.919 5.66 0.09
Business-
per-
Employee
Net NPA
Capital
Adequacy
Ratio
The impact of the statistically significant variables namely deposits, advances, net NPA, business-per-employee, profit-per-employee and the capital adequacy ratio on the share price was further analyzed with a multi-variate regression. The correlation and regression coefficients registered values close to 1 and were higher than those observed when the impact of the variables on the share price was assessed individually. However it was not
statistically significant at the 95% confidence level and was significant only at the 90%
confidence level. The relationship from the above analysis given below:
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5. Discussion and Analysis:
In the current study we focus exclusively on the impact of internal factors closely
monitored by the RBI on the profitability of one of India’s large public banks and also
its share price performance. These factors include deposits, advances, net NPA, return on assets, the capital adequacy ratio, business-per-employee and profit-per-employee. We find a strong positive correlation between deposits and net profit and also between deposits and the share price (Table1, 3). Deposits are often seen as a barometer of a bank’s financial health and stability. Similar results have been observed earlier by Smirlock & Brown (1986), who found a strong positive
relationship between demand deposits and bank profitability. Ganesan (2001) also
found a strong correlation between deposits and profitability for a group of public
sector banks in India.
We also find a strong positive correlation between advances and net profit and also between advances and the share price (Table1, 3). Banks generate significant profits from their margins on advances. Ganesan, (2001)
found a similar relationship between priority sector advances and profitability for a
group of Indian public sector banks.
We also find an inverse relationship between the net NPA and net profit and also between net NPA and the share price (Table1, 3). Nonperforming assets are charge off’s against profits and therefore negatively impact performance. In an earlier study Miller and Noulas, (1997) found that loan loss
provision and net charge offs had a significant negative effect on the profitability of
large banks. Bodla and Verma, (2006) have also indicated that provisioning for bad
loans significantly impacted profits of public sector banks in India.
We find a strong positive correlation between business generated-per-employee and net profit. Similarly a positive correlation is also observed between business and profit generated per employee and the share price (Table1, 3). These two indicators help in assessing the productivity of the work force
and the extent of their contribution to the operational efficiency of banks. Ben Naceur
and Goaied, (2001) found that the best performing Tunisian banks are those that
improve labor and capital productivity.
2) (Eqn. .3913233NPA)](Net *[246.288 NPA)](Net *[0.043 Employee) / (Business*[1056.537
Employee)](Profit / *[1152.459 -](Advances)*[0.0004 ](Deposits)*[-0.05 =Price Share
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We don’t find a significant impact of the return on assets on profitability and the share price (Table1, 3). The return on assets ratio measures the asset usage efficiency. The capital adequacy ratio was found to be positively correlated to the stock price but had no effect on net profits (Table1, 3). The capital adequacy ratio can be used to gauge the credit risk of the bank. Sufian,
(2009) found that Malaysian banks with higher credit risk and loan concentration
exhibited lower profitability levels.
A multi-variate regression analysis (Table 2, 4) showing the combined effect of all the variables on net profit and the share price was carried out in the study. The results showed that impact of all the variables taken together on the net profit and share price was significantly higher than when assessed individually. The respective relationships are depicted in equations 1 and 2. This suggests that these variables synergistically impact both net profits and the share price. However Anova results suggest that the relationship of the variables with net profit was much stronger than with that of the share price (Table 2, 4). With a similar multi-variate analysis Bodla and Verma, (2006) found
that variables such as non-interest income, operating expenses, provisions ,
contingencies and spread have significant relationship with net profits.
Conclusion
In this paper, we study the impact of key internal determinants of profitability
namely deposits, advances, net NPA’s, business-per-employee, profit-per-employee, capital adequacy ratio and return on assets on both net income and the share price of a large Indian public bank. While deposits, advances, net NPA, business-per-employee and profit-per-employee positively influenced both net income and the share price net, the net NPA negatively impacted net income and the share price. The capital adequacy ratio influenced only the share price and did not
impact net income. Return on assets had no influence on either the net income or the
share price. A multi-variate regression analysis of the data indicated that the selected
variables synergistically impacted both net income and the share price. Thus interplay of
these and other factors drive profitability and share price performance.
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